797983 has 4 divisors (see below), whose sum is σ = 817488. Its totient is φ = 778480.

The previous prime is 797977. The next prime is 797987. The reversal of 797983 is 389797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797983 is a prime.

It is a Duffinian number.

797983 is a lucky number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9691 + ... + 9772.

It is an arithmetic number, because the mean of its divisors is an integer number (204372).

2⁷⁹⁷⁹⁸³ is an apocalyptic number.

797983 is a deficient number, since it is larger than the sum of its proper divisors (19505).

797983 is a wasteful number, since it uses less digits than its factorization.

797983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19504.

The product of its digits is 95256, while the sum is 43.

The square root of 797983 is about 893.2989421241. The cubic root of 797983 is about 92.7536936408.

The spelling of 797983 in words is "seven hundred ninety-seven thousand, nine hundred eighty-three".